Home / 11,449.28-15,779.40-7,250.24

Finding the Fourth Proportional to 11,449.28, 15,779.40 and 7,250.24

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Solution

The fourth proportional to 11,449.28, 15,779.40 and 7,250.24 is: 9,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.28 : 15,779.40 = 7,250.24 : x
  2. Step 2: Convert to fraction form
    11,449.28/15,779.40 = 7,250.24/x
  3. Step 3: Cross multiply
    11,449.28x = 15,779.40 × 7,250.24
  4. Step 4: Simplify right side
    11,449.28x = 114,404,437.06
  5. Step 5: Solve for x
    x = 114,404,437.06/11,449.28
  6. Step 6: Final answer
    x = 9,992.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.